<template>
  <div class="login-container"
       @focusin="test"
       @click="test">

    <el-form autoComplete="on"
             :model="loginForm"
             :rules="loginRules"
             ref="loginForm"
             label-position="left"
             label-width="0px"
             class="card-box login-form">
      <!-- <h3 class="title">又放假啦！</h3> -->
      <img src="/static/正常状态.png"
           class="pic"
           v-show="focusElement === 'normal'">
      <img src="/static/输入账号.png"
           class="pic"
           v-show="focusElement === 'account'">
      <img src="/static/输入密码.png"
           class="pic"
           v-show="focusElement === 'password'">
      <el-form-item prop="username"
                    class="input_form_item">
        <span class="svg-container svg-container_login">
          <svg-icon icon-class="user" />
        </span>
        <el-input name="username"
                  type="text"
                  v-model="loginForm.username"
                  autoComplete="on"
                  class='login_input'
                  placeholder="报上名来"
                  ref="account" />
      </el-form-item>
      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password"></svg-icon>
        </span>
        <el-input name="password"
                  :type="pwdType"
                  v-model="loginForm.password"
                  autoComplete="on"
                  placeholder="说出暗号"
                  class='login_input'
                  @keyup.enter.native="handleLogin"
                  ref="password"></el-input>
        <span class="show-pwd"
              @click="showPwd">
          <svg-icon icon-class="eye" />
        </span>
      </el-form-item>
      <el-form-item>
        <el-button type="info"
                   style="width:100%;background:rgba(255,255,255,0);border-width:0px;cursor: url('/static/敲门.png'), auto;"
                   :loading="loading"
                   @click.native.prevent="handleLogin"
                   plain>
          <img src="/static/门.png"
               alt="">
        </el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import { isvalidUsername } from "@/utils/validate";

export default {
  name: "login",
  data() {
    const validateUsername = (rule, value, callback) => {
      if (!isvalidUsername(value)) {
        callback(new Error("请输入正确的用户名"));
      } else {
        callback();
      }
    };
    const validatePass = (rule, value, callback) => {
      if (value.length < 1) {
        callback(new Error("密码不能小于1位"));
      } else {
        callback();
      }
    };
    return {
      focusElement: "normal",
      rendomStr: "",
      loginForm: {
        username: "",
        password: ""
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", validator: validateUsername }
        ],
        password: [{ required: true, trigger: "blur", validator: validatePass }]
      },
      loading: false,
      pwdType: "password"
    };
  },
  methods: {
    test(ev) {
      if (ev.target == this.$refs.account.$el.children[0]) {
        this.focusElement = "account";
      } else if (ev.target == this.$refs.password.$el.children[0]) {
        this.focusElement = "password";
      } else {
        this.focusElement = "normal";
      }
    },
    showPwd() {
      if (this.pwdType === "password") {
        this.pwdType = "";
      } else {
        this.pwdType = "password";
      }
    },
    handleLogin() {
      if (!this.loginForm.username || !this.loginForm.password) {
        this.$message({
          message: "请输入帐号或者密码",
          type: "warning"
        });
      }
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true;
          this.$store
            .dispatch("Login", this.loginForm)
            .then(data => {
              if (data.stateCode === "000000" || data.stateCode === "") {
                this.$message({
                  message: "登录成功",
                  type: "success"
                });
                this.loading = false;
                this.$router.push({ path: "/" });
              } else {
                this.loading = false;
                this.$message({
                  message: data.stateMessage,
                  type: "error"
                });
              }
            })
            .catch(() => {
              this.loading = false;
            });
        } else {
          console.log("error submit!!");
          return false;
        }
      });
    }
  }
};
</script>

<style rel="stylesheet/scss" lang="scss">
// $bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login_input input {
  cursor: url("/static/笔.png"), auto;
}

.login-container {
  position: fixed;
  height: 100%;
  width: 100%;
  // background-color: $bg;
  background: url("/static/登录背景.jpg") no-repeat;
  background-size: 100%;
  cursor: url("/static/鼠标.png"), auto;
  input:-webkit-autofill {
    -webkit-box-shadow: 0 0 0px 1000px #293444 inset !important;
    -webkit-text-fill-color: #fff !important;
  }
  input {
    background: transparent;
    border: 0px;
    -webkit-appearance: none;
    border-radius: 0px;
    padding: 12px 5px 12px 15px;
    color: $light_gray;
    height: 47px;
  }
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;
  }
  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;
  }
  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
    &_login {
      font-size: 20px;
    }
  }
  .title {
    font-size: 26px;
    font-weight: 400;
    color: $light_gray;
    margin: 0px auto 40px auto;
    text-align: center;
    font-weight: bold;
  }
  .login-form {
    position: absolute;
    left: 0;
    right: 0;
    width: 400px;
    padding: 35px 35px 15px 35px;
    margin: 270px auto;
  }
  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
  .thirdparty-button {
    position: absolute;
    right: 35px;
    bottom: 28px;
  }
  .pic {
    width: 100px;
    position: absolute;
    left: 50%;
    top: -30px;
    margin-left: -50px;
  }
  .card-box {
    position: relative;
  }
}
</style>
